Root is there a way to root this phone flashing a custom recovery thru Odin?

Hey everyone. I have a Samsung galaxy s2 with boost and use this site often for it. Well my brothers iPhone took a crap so he's using his old revolution again. I told him I'd find out how to root it and upgrade ROMs. I briefly looked at the root guide and I'm totally lost. Is there no way to flash a custom recovery using Odin, enabling one to flash in other things like custom ROMs or superuser? Thanks in advance